What do you think would Ethereum sustain this pressure and retain its leading spot?
How would the Proof of Stake, if implemented in time, work for Ethereum?
There has been lots of pressure and Ethereum dev's are up to the challenge.
Would Ethereum solve their scalability issue?
Does Ethereum decentralization give it an edge over other centralized smart contract platforms?
They have addressed the scalability issues so I don't think that is the problem right now. And it seems almost all the projects in the pipeline is based on Ethereum so I would assume that they will continue to dominate in the next 5 years or so.